Solar panel installation in Somerset

Solar panel installation in Somerset

Somerset, with its varied landscape of rolling hills, coastline, and a blend of rural properties and market towns, offers a unique setting for homeowners considering solar panel installation. Many homes, particularly those in rural or off-gas-grid areas, are well-placed to benefit from increased energy independence. Situated in Southern England, Somerset enjoys some of the UK's highest annual sunlight hours, making solar an attractive investment for reducing bills and taking control of your home's energy future.

Why choose solar panels in Somerset?

Installing solar panels is a strategic decision for Somerset homeowners looking to manage their energy supply and costs. The region's specific characteristics make it particularly well-suited for generating solar energy.

Harnessing Somerset's sunlight hours

Southern England benefits from some of the highest solar irradiance levels in the UK, with average annual sunlight hours typically ranging from 1,400 to 1,600 hours per year. This means homes in the South East, including Somerset, generally produce more electricity from solar panels than most other UK regions. While peak production occurs in summer, modern solar panels generate electricity from daylight, not just direct sunlight, meaning they work effectively even on cloudy days, which are common in the UK. This consistent daylight contributes significantly to the long-term viability and payback of solar installations in the county. If you're wondering how well solar panels work on cloudy days, the answer is surprisingly well.

Reducing energy bills in the South West England region

For Somerset residents, reducing energy bills is a primary motivation for considering solar. The county falls within the "South West England" electricity distribution region, which influences the unit rates and daily standing charges set by Ofgem's price cap. This cap is updated quarterly, affecting electricity costs. By generating your own electricity, you can significantly offset your reliance on grid power, directly impacting your monthly outgoings and providing a hedge against future price increases. This can lead to a significant change in your average monthly electric bill with solar panels.

Boosting your home's energy independence

Beyond financial savings, solar panels offer a substantial boost to your home's energy independence. Generating your own power means less reliance on external energy suppliers and fluctuating global energy markets. This control allows you to manage your energy consumption more effectively, especially when paired with battery storage, ensuring a more stable and predictable energy future for your household. Combining solar panels with an air source heat pump and solar panels can further enhance your home's energy efficiency.

Understanding solar panel costs and grants in Somerset

The initial investment in solar panels can seem significant, but various incentives and local schemes can make it more accessible for Somerset homeowners.

The 0% VAT benefit for installation

A major financial incentive for solar panel installation across Great Britain is the 0% VAT rate on energy-saving materials, including solar panels and battery storage. This relief is currently active until 31 March 2027. This government subsidy can save homeowners approximately £1,000 to £2,600 on a typical 4–6kW solar and battery installation, making it a universal benefit regardless of income or property type.

Smart Export Guarantee (SEG) explained

The Smart Export Guarantee (SEG) is a government-backed scheme that requires larger licensed electricity suppliers to pay homeowners for any surplus renewable electricity they export back to the National Grid. To qualify for SEG payments, your solar panel installation must be certified under the Microgeneration Certification Scheme (MCS) or an equivalent scheme, ensuring it meets UK technical and quality standards. You will also need a smart meter capable of recording your exported electricity. SEG tariffs vary between suppliers, so it pays to compare rates.

What is the SEG?

The SEG is a government scheme introduced in 2020 that mandates larger energy suppliers to pay homeowners for surplus renewable electricity exported to the grid. It allows you to earn money from the excess power your solar panels generate, complementing bill savings and accelerating the payback period for your solar investment.

Typical costs for solar panel installation

The solar panel installation cost in Somerset, like anywhere else, varies based on system size, panel type, and whether battery storage is included. A standard 4kW photovoltaic (PV) system, suitable for a 2-3 bedroom house, typically costs around £8,000, including installation. If you include an inverter and solar battery, the average cost can rise to approximately £12,000. These figures generally include the 0% VAT benefit. Payback periods for solar installations can vary, typically falling between 6-10 years.

Beyond national schemes, Somerset also offers local support. The Warm Homes: Local Grant, a replacement for the ECO4 scheme, is a primary funded solar scheme for eligible Somerset homeowners, offering up to £15,000 for solar panels, battery storage, and other energy efficiency measures. Eligibility for this grant typically requires a household income below approximately £36,000 per year and a property Energy Performance Certificate (EPC) rating of D, E, F, or G. It is worth noting that funding is not guaranteed and the scheme may have a waiting list until April 2027. Additionally, Lendology CIC provides low-interest loans for home energy improvements, including solar, specifically for homeowners in Somerset, Bath & North East Somerset, and North Somerset. These council-backed loans offer fixed interest rates, flexible repayment terms, and no early repayment charges.

Local considerations for Somerset homeowners

Understanding the local energy infrastructure and regulations is crucial for a smooth solar panel installation process in Somerset.

Your local distribution network operator (DNO): National Grid Electricity Distribution

The local Distribution Network Operator (DNO) for Somerset is National Grid Electricity Distribution. The DNO is responsible for the electricity cables and infrastructure in your area, not your energy supplier. Their approval is essential to ensure your solar system can connect safely to the grid without causing issues for the local network, such as voltage fluctuations or overloading. In the event of a power cut, Somerset residents should dial the free national number 105, which routes directly to their DNO.

Navigating the G98/G99 connection process

Any new solar or battery grid connection in Somerset requires notification to National Grid Electricity Distribution under the G98/G99 process. This is a legal and practical requirement before your solar panels start generating electricity and exporting to the grid.

  • G98 is typically for smaller domestic systems, usually with an inverter rated at 3.68 kW or less per phase. Your installer will notify the DNO after installation, and this is generally a quicker process.
  • G99 applies to larger or more complex setups with an inverter rated above 3.68 kW per phase. For G99 systems, you must submit an application and receive approval from the DNO before installation begins, as it requires a more detailed assessment of the system's impact on the local grid.

In most cases, your solar installer will handle the DNO application process entirely, ensuring compliance and avoiding potential delays or fines.

Impact of the South West England price cap region

As mentioned, Somerset falls under the "South West England" electricity distribution region. Ofgem's energy price cap is set regionally and updated quarterly, influencing the unit rates and standing charges you pay. By generating your own electricity, you can mitigate the impact of these regulated prices, especially during periods of high energy demand or price volatility. This regional context underscores the financial benefits of reducing your reliance on grid electricity.

Choosing the right solar installer in Somerset

Selecting a reputable and qualified solar installer is paramount to a successful and compliant installation.

The importance of MCS certification

MCS certification for installers is crucial for several reasons. Firstly, it assures that your installation meets high industry standards for quality and safety. Secondly, and critically for homeowners, MCS certification is a mandatory requirement for qualifying for the SEG. Without it, you will not be able to earn money from the surplus electricity your system exports to the grid. Always verify that your chosen installer is MCS-certified.

Questions to ask potential installers

When obtaining quotes from solar companies in Somerset, consider asking:

  • Are you MCS-certified? (Request proof of certification).
  • What is your experience with DNO applications in the Somerset area, particularly with National Grid Electricity Distribution?
  • Can you provide references or examples of previous installations in Somerset?
  • What warranties do you offer on panels, inverters, and workmanship?
  • Do you offer battery storage solutions, and how do they integrate with your solar systems?

Local reviews and case studies

Checking local reviews and case studies can provide valuable insights into an installer's reputation and customer satisfaction. Look for feedback from other Somerset homeowners to gauge their experience with the company's service, installation quality, and aftercare. This local perspective can help you make an informed decision.

Maximising your solar investment with battery storage

Integrating battery storage with your solar panel system can significantly enhance its benefits, allowing you to get even more from your investment.

How battery storage works with solar panels

Solar panels generate electricity when the sun shines, but your household's energy demand might not always align with peak generation times. Battery storage systems capture this excess electricity, storing it for later use. This means you can power your home with your own clean energy even after the sun has set or during periods of low solar generation.

Benefits of storing your own energy

The primary benefit of storing your own energy is maximising self-consumption. Instead of exporting surplus electricity to the grid for SEG payments (which are typically lower than the import price), you can use your stored energy, further reducing your electricity bills. This also provides greater energy independence and resilience, offering a backup power source during grid outages.

Integrating battery storage into your system

Most modern solar panel installations can be designed to include battery storage from the outset, or batteries can often be retrofitted to existing systems. The 0% VAT relief also applies to battery storage installations until 31 March 2027, making it a more affordable addition. Discuss your energy consumption patterns with your installer to determine the optimal battery size and configuration for your Somerset home.

The solar panel installation process: what to expect

Understanding the typical steps involved in solar panel installation can help you prepare for the project.

Initial assessment and site survey

The process usually begins with an initial consultation and site survey. An installer will assess your property's suitability for solar panels, considering factors like roof orientation, shading, structural integrity, and your household's energy consumption. This assessment helps determine the optimal system size and design for your home.

Installation day and commissioning

Once the design is finalised and approvals (including DNO notification) are in place, the physical installation can begin. This typically involves mounting the panels on your roof, installing the inverter, and connecting the system to your home's electrical supply and, if applicable, battery storage. After installation, the system will be commissioned and tested to ensure it is operating safely and efficiently.

Activating your Smart Export Guarantee

After your solar panels are installed and commissioned, and you have received your MCS certificate and DNO grid connection letter, the final step is to activate your SEG. You will need to choose an energy supplier that offers an SEG tariff and apply to them. They will require documentation, including your MCS certificate and proof of grid connection, to set up your payments for exported electricity.

Published on 3 Sept 2026

Share

Disclaimer

For the avoidance of doubt, this article is provided for informational purposes only and is not intended to constitute legal or financial advice. The author and/or Fuse Energy shall not be responsible for any losses arising out of any reliance on the information contained herein.

Solar panel installation in Somerset